Web of Science: 9 citations, Scopus: 11 citations, Google Scholar: citations,
Injection locking in an optomechanical coherent phonon source
Arregui Bravo, Guillermo (Universitat Autònoma de Barcelona. Departament de Física)
Colombano Sosa, Martin (Institut Català de Nanociència i Nanotecnologia)
Maire, Jeremie (Institut Català de Nanociència i Nanotecnologia)
Pitanti, Alessandro (Istituto di Nanoscienze and Scuola Normale Superiore (Pisa, Itàlia))
Capuj, Nestor Eduardo (Universidad de La Laguna. Instituto Universitario de Materiales y Nanotecnología)
Griol, Amadeu. (Universitat Politècnica de València. Nanophotonics Technology Center)
Martínez, Alejandro (Universitat Politècnica de València. Nanophotonics Technology Center)
Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
Navarro Urrios, Daniel (Universitat de Barcelona. Departament d'Enginyeria Electrònica i Biomèdica)

Date: 2021
Abstract: Spontaneous locking of the phase of a coherent phonon source to an external reference is demonstrated in a deeply sideband-unresolved optomechanical system. The high-amplitude mechanical oscillations are driven by the anharmonic modulation of the radiation pressure force that result from an absorption-mediated free-carrier/temperature limit cycle, i. e. , self-pulsing. Synchronization is observed when the pump laser driving the mechanical oscillator to a self-sustained state is modulated by a radiofrequency tone. We employ a pump-probe phonon detection scheme based on an independent optical cavity to observe only the mechanical oscillator dynamics. The lock range of the oscillation frequency, i. e. , the Arnold tongue, is experimentally determined over a range of external reference strengths, evidencing the possibility to tune the oscillator frequency for a range up to 350 kHz. The stability of the coherent phonon source is evaluated via its phase noise, with a maximum achieved suppression of 44 dBc/Hz at 1 kHz offset for a 100 MHz mechanical resonator. Introducing a weak modulation in the excitation laser reveals as a further knob to trigger, control and stabilize the dynamical solutions of self-pulsing based optomechanical oscillators, thus enhancing their potential as acoustic wave sources in a single-layer silicon platform.
Grants: European Commission 713450
Agencia Estatal de Investigación SEV-2017-0706
Ministerio de Ciencia e Innovación PGC2018-094490-B-C22
Ministerio de Ciencia e Innovación PGC2018-101743-B-I00
Ministerio de Ciencia e Innovación RYC-2014-15392
Note: Altres ajuts: CERCA Programme/Generalitat de Catalunya.
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: Article ; recerca ; Versió publicada
Subject: Injection locking ; Nonlinear dynamics ; Optomechanics ; Self-sustained oscillator
Published in: Nanophotonics, Vol. 10, Issue 4 (2021) , p. 1319-1327, ISSN 2192-8614

DOI: 10.1515/nanoph-2020-0592


9 p, 2.0 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles

 Record created 2021-12-20, last modified 2023-12-07



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